Effective Dose Estimator
Approximate patient effective dose from a diagnostic radiopharmaceutical
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Select a diagnostic radiopharmaceutical and enter the administered activity to estimate the effective dose in millisieverts, using adult ICRP-128 dose coefficients. This is the radiopharmaceutical component only — hybrid CT adds dose separately (see Radiation Biology & Protection).
Cumulative effective dose (multi-study)
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cumulative effective dose (mSv)
Representative doses (mSv), scaling with administered activity, patient size and CT. Context: natural background ≈3 mSv/yr; chest CT ~5–7 mSv. Diagnostic doses carry only stochastic risk. Verify locally.
Evidence & sources
BICRP Publication 128 — radiation dose coefficients (effective dose per unit administered activity) for radiopharmaceuticals.